CVE-2006-6404: INNOVATION Data Processing FDR/UPSTREAM 3.3.0 (GA Oct 2003) allows remote attackers to cause a denial of servi

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MEDIUM 5.0DOWNGRADE

CVE-2006-6404 is a medium-severity flaw (CVSS 5.0) affecting fdr\/upstrean. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

INNOVATION Data Processing FDR/UPSTREAM 3.3.0 (GA Oct 2003) allows remote attackers to cause a denial of service (service outage) via a sequence of TCP SYN packets to many ports, as demonstrated using nmap. NOTE: the vendor's testing reportedly found that no denial of service occurred.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2009-10-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: innovationdp

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-10-19 20:00 UTCPublished CVE record published
2026-06-16 22:33 UTCUpdated Record last modified

innovationdp fdr\/upstrean DOWNGRADE

Affected: 3 30

Fixed in: no fixed release known

Safe to downgrade to: a release before 3

1. Check installed version

apt-cache policy fdrupstrean || rpm -q fdrupstrean || fdrupstrean --version

2. No fixed release: DOWNGRADE to a release before 3 (Debian / Ubuntu)

apt-cache madison fdrupstrean sudo apt install fdrupstrean=<VERSION_BEFORE_3> sudo apt-mark hold fdrupstrean

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fdrupstrean sudo dnf downgrade fdrupstrean-<VERSION_BEFORE_3> sudo dnf versionlock add fdrupstrean

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-6404?

fdr\/upstrean: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-6404 being exploited?

CVE-2006-6404 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-6404 affect?

CVE-2006-6404 affects fdr\/upstrean. Severity is medium (CVSS 5.0). INNOVATION Data Processing FDR/UPSTREAM 3.3.0 (GA Oct 2003) allows remote attackers to cause a denial of service (service outage) via a sequence of TCP SYN packets to many ports, as demonstrated using nmap. NOTE: the vendor's testing report

How urgent is CVE-2006-6404?

Priority 41/100. Public exploit reference

References

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